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README.md

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+The Music Publisher Database
+============================
+
+[![TYPO3 11](https://img.shields.io/badge/TYPO3-11-orange.svg)](https://get.typo3.org/version/11)
+[![CC-BY](https://img.shields.io/github/license/slub/mpdb_core)](https://github.com/slub/mpdb_core/blob/main/LICENSE)
+
+This is the core module of the music publisher database, which is published under https://musikverlage.slub-dresden.de.
+
+# Installation
+
+After installing the extension, index your data with the following command:
+
+```bash
+$ typo3 mpdb_core:index
+```
+
+Also take a look at the other commands for retrieving GND data and health checking the database.
+
+# Maintainer
+
+If you have any questions or encounter any problems, please do not hesitate to contact me.
+- [Matthias Richter](https://github.com/dikastes)